Disassembling tool for square battery cell module

Abstract

The utility model belongs to the technical field of square battery cell module disassembly, and particularly relates to a square battery cell module disassembly tool which comprises an end cover drawing assembly, a tool frame and a shell fixing assembly. The shell fixing assembly comprises two first hook bodies and two second hook bodies. The two first hook bodies and the two second hook bodies are matched to fix a shell of the square battery cell module; the drawing assembly comprises a lead screw and a drawing head, the lead screw is in threaded connection with the tool frame, the end of the lead screw is rotationally connected with the drawing head, and the drawing head is used for being connected with an end cover of the square battery cell module so as to pull the end cover away from the shell when the lead screw rotates. According to the scheme, the shell fixing assembly is provided with the two first hook bodies and the two second hook bodies of which the relative positions can be adjusted, and square battery cell modules of different sizes and models can be fixed by adjusting the relative positions of the different hook bodies, so that the end cover drawing assembly can conveniently disassemble the end cover.

Description

Technical Field

[0001] This utility model belongs to the field of square battery cell module disassembly technology, specifically relating to a disassembly tooling for square battery cell modules. Background Technology

[0002] Square cell modules are widely used in new energy vehicles and other fields. A square cell module usually consists of a square shell, an end cap, and a cell installed inside the square shell. When disassembling a square cell module, it is often necessary to first remove the end cap from the shell. If the end cap of the square module is disassembled manually, it is usually knocked off the shell by tapping. Alternatively, the end cap can be cut off the shell and then knocked off. Both of these methods can easily damage the cells inside the shell and do not meet safety standards.

[0003] Existing patent CN219054261 discloses a square module disassembly fixture and a square module, including a contour frame, a bracket, and screws, which can solve the problem of difficult disassembly of the end cap and battery cell of square modules. However, this solution can only disassemble square battery cell modules of the same model and cannot be adapted to different sizes and models, resulting in poor versatility. Utility Model Content

[0004] To address the issue that existing square battery module disassembly tools cannot disassemble square battery module modules of different sizes and models, this solution provides a disassembly fixture for square battery module modules.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A disassembly fixture for a square battery cell module includes an end cap pulling assembly, a fixture frame, and a housing fixing assembly;

[0007] The housing fixing assembly includes two first hooks and two second hooks; each second hook is connected to a first hook via a hook arm, the connection position of the hook arm and the second hook is adjustable to adjust the distance between the first hook and the second hook; the two second hooks are slidably mounted on the fixture, and the two second hooks are adjusted by a distance adjustment mechanism to move closer or further apart from each other; the two first hooks and the two second hooks cooperate to fix the housing of the square battery cell module;

[0008] The pulling assembly includes a lead screw and a pulling head. The lead screw is threadedly connected to a tooling frame, and the end of the lead screw is rotatably connected to the pulling head. The pulling head is used to connect the end cap of the square battery cell module so that the end cap can be pulled away from the housing when the lead screw rotates.

[0009] As an alternative or supplement to the above-mentioned disassembly fixture: the spacing adjustment mechanism includes an upper wedge block, a lower wedge block, and a synchronizing rod; each of the two second hooks is fixedly connected to a lower wedge block, and both ends of the synchronizing rod are connected to upper wedge blocks. The inclined surfaces of the two upper wedge blocks face opposite directions, and the inclined surfaces of the upper wedge blocks cooperate with those of the lower wedge blocks to control the two second hooks to move closer to or further away from each other when the synchronizing rod moves.

[0010] As an alternative or supplement to the above-mentioned disassembly fixture, the spacing adjustment mechanism also includes a return spring and a seat block; the two seat blocks are fixed on the fixture frame, and the seat blocks abut against the lower wedge block through the return spring.

[0011] As an alternative or supplement to the above-mentioned disassembly fixture, the spacing adjustment mechanism also includes a threaded adjustment rod, which passes through the synchronizing rod and is threadedly connected to the fixture frame. Rotating the threaded adjustment rod can control the movement of the synchronizing rod.

[0012] As an alternative or supplement to the above-mentioned disassembly fixture: the end cap pulling assembly further includes a guide rod; the guide rod is parallel to the lead screw, the guide rod is slidably engaged with the fixture frame, and the end of the guide rod is connected to the pulling head.

[0013] As an alternative or supplement to the above-mentioned disassembly fixture: the puller head is provided with an elongated hole, and a screw passing through the elongated hole can be connected to the puller head to achieve the fixation of the puller head to the puller head.

[0014] As an alternative or supplement to the above-mentioned disassembly fixture: the fixture frame includes a pull-out seat, an intermediate seat, a connecting rod, a portal frame, and a guide groove; the pull-out seat is plate-shaped, and both sides of the portal frame are connected to both ends of the pull-out seat through the intermediate seat and the connecting rod, and the intermediate seat is connected to the portal frame and the portal frame through different connecting rods.

[0015] As an alternative or supplement to the above-mentioned disassembly fixture: a guide groove is provided on the gantry frame, and the second hook body slides in conjunction with the groove.

[0016] As an alternative or supplement to the above-mentioned disassembly fixture: a telescopic hole is provided on the second hook body, and one end of the hook arm is inserted into the telescopic hole; a pin is provided on the side wall of the second hook body, and multiple pin holes that cooperate with the pin are provided on the hook arm; the pin is connected to the second hook body through a pin spring, and the pin can be inserted into different pin holes to fix the relative position of the hook arm and the second hook body.

[0017] The beneficial effects of this utility model are as follows: The outer shell fixing component in this solution has two first hooks and two second hooks with adjustable relative positions. By adjusting the relative positions of different hooks, it is possible to fix square battery cell modules of different sizes and models, thereby facilitating the end cap pulling component to disassemble the end cap. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is an overall structural diagram of the disassembly fixture for the square battery cell module in this solution;

[0020] Figure 2 This is a structural diagram showing the fit between the tooling fixture and the end cap pulling assembly;

[0021] Figure 3 This is a structural schematic diagram of the outer casing fixing assembly;

[0022] Figure 4 This is a diagram showing the cooperation structure between the spacing adjustment mechanism and the second hook.

[0023] Figure 5 This is a cross-sectional structural diagram of the spacing adjustment mechanism and the second hook;

[0024] Figure 6 This is a structural diagram of the first hook body and hook arm;

[0025] Figure 7 This is a structural diagram of the outer casing and end cap of a square battery cell module.

[0026] In the diagram: 1-End cap pulling assembly; 11-Guide rod; 12-Screw rod; 13-Pulling head; 2-Tooling frame; 21-Pulling seat; 22-Intermediate seat; 23-Connecting rod; 24-Gantry frame; 25-Guide groove; 26-Threaded hole; 27-Through hole; 3-Outer shell fixing assembly; 31-First hook body; 32-Hook arm; 33-Pin hole; 34-Firming bolt; 35-Second hook body; 36-Pin rod; 37-Pin rod spring; 4-Gap adjustment mechanism; 41-Shell; 42-Threaded adjusting rod; 43-Lower wedge block; 44-Synchronizing rod; 45-Upper wedge block; 46-Reset spring; 47-Seat block. Detailed Implementation

[0027] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0028] like Figures 1 to 7 As shown, this embodiment designs a disassembly fixture for a square battery cell module, including an end cap pulling assembly 1, a fixture frame 2, a housing fixing assembly 3, and a spacing adjustment mechanism 4. The fixture frame 2 is used for installing the end cap pulling assembly 1, the housing fixing assembly 3, and the spacing adjustment mechanism 4.

[0029] The tooling frame 2 includes components such as a pull-out seat 21, an intermediate seat 22, a connecting rod 23, and a portal frame 24. The pull-out seat 21 is in the shape of a straight plate. The left and right sides of the portal frame 24 are connected to the left and right ends of the pull-out seat 21 through the intermediate seat 22 and the connecting rod 23, thereby forming a space for installing square battery cell modules within the tooling frame 2. The intermediate seat 22 is connected to the portal frame 24 through different connecting rods 23. The front side of the intermediate seat 22 is connected to the left or right end of the pull-out seat 21 through a connecting rod 23, and the rear side of the intermediate seat 22 is connected to the left or right side of the portal frame 24 through two connecting rods 23, one above and one below.

[0030] A threaded hole 26 is provided at the center of the top surface of the portal frame 24, and elongated guide grooves 25 are provided on both the left and right sides of the thread.

[0031] The outer casing fixing assembly 3 includes two first hooks 31 and two second hooks 35, and the relative positions of the four hooks are adjustable.

[0032] Two second hooks 35 are slidably mounted on the tooling frame 2. Specifically, each second hook has a column at its upper end, which passes through the guide groove 25 of the portal frame 24 and can move along the guide groove 25, allowing the second hook 35 to slide and engage with the slide groove, enabling the two second hooks to move closer or further apart. Both second hooks 35 are adjusted by a spacing adjustment mechanism 4 to move closer or further apart. Specifically, the spacing adjustment mechanism 4 includes components such as an upper wedge block 45, a lower wedge block 43, a synchronizing rod 44, a return spring 46, and a seat block 47. Each second hook 35 is fixedly connected to a lower wedge block 43 via a column. Both ends of the synchronizing rod 44 are connected to upper wedge blocks 45, which engage with the lower wedge blocks 43 on their inclined surfaces, with the inclined surfaces of the two upper wedge blocks 45 facing opposite directions. Two seat blocks 47 are fixed on the tooling frame 2, and the seat blocks 47 abut against the lower wedge blocks 43 via the return spring 46. When the synchronizing rod 44 moves upward, the force exerted by the upper wedge block 45 on the lower wedge block 43 decreases, and the return spring 46 pushes the lower wedge blocks 43 away from each other, thereby causing the two second hooks 35 to move away from each other; while when the synchronizing rod 44 moves downward, the force exerted by the upper wedge block 45 on the lower wedge block 43 increases, thereby pushing the lower wedge blocks 43 closer to each other and compressing the return spring 46, and at the same time causing the two second hooks 35 to move closer to each other.

[0033] The spacing adjustment mechanism 4 also includes a threaded adjustment rod 42, which passes through the synchronizing rod 44 and is threadedly connected to the threaded hole 26 on the tooling frame 2. When the threaded adjustment rod 42 is rotated, the movement of the synchronizing rod 44 can be controlled.

[0034] Each second hook 35 is connected to the first hook 31 via a hook arm 32. The front end of the hook arm 32 is fixedly connected to the front end of the hook arm 32, and the connection position of the rear end of the hook arm 32 with the second hook 35 is adjustable to adjust the distance between the first hook 31 and the second hook 35. Specifically, a telescopic hole is provided on the second hook 35, and one end of the hook arm 32 is inserted into the telescopic hole. A pin 36 is provided on the side wall of the second hook 35, and multiple pin holes 33 are provided on the hook arm 32 to cooperate with the pin 36. The pin 36 is connected to the second hook 35 via a pin spring 37, and the pin 36 can be inserted into different pin holes 33 to fix the relative position of the hook arm 32 and the second hook 35. When the pin 36 is in the pulled-out state, the hook arm 32 can move back and forth along the telescopic hole, while when the pin 36 is in the inserted state, the position of the hook arm 32 and the second hook 35 is fixed. The shank end of the pin 36 is inserted into the through hole 27 on the side of the gantry frame 24, thereby reducing the forward and backward movement of the second hook 35.

[0035] The pulling assembly includes a lead screw 12, a guide rod 11, and a pulling head 13. The lead screw 12 is threadedly connected to the tooling frame 2, and its end is rotatably connected to the pulling head 13. The pulling head 13 is used to connect the end cap of the square battery cell module so that the end cap can be pulled away from the housing when the lead screw 12 rotates. The guide rod 11 is parallel to the lead screw 12 and is slidably engaged with the tooling frame 2. Its end is connected to the pulling head 13.

[0036] The pull head 13 is provided with an elongated hole so that the screw passing through the elongated hole can be connected to the pull head 13 to fix the pull head 13.

[0037] When using the disassembly fixture in this embodiment:

[0038] Place the square battery cell module under the fixture 2, adjust the positions of the two first hooks 31 and the two second hooks 35 so that the four hooks hook onto the edge of the square battery cell module's outer shell, thereby fixing the square battery cell module. Move the position of the pull head 13 so that the pull head 13 is close to the end cover, and then use screws to fix the pull head 13 to the end cover. Rotating the lead screw 12 will remove the end cover from the outer shell.

[0039] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A disassembly fixture for a square battery cell module, characterized in that: Includes end cap pulling assembly (1), tooling bracket (2) and housing fixing assembly (3); The outer casing fixing assembly (3) includes two first hooks (31) and two second hooks (35); each second hook is connected to the first hook (31) via a hook arm (32), and the connection position of the hook arm (32) and the second hook (35) is adjustable to adjust the distance between the first hook (31) and the second hook (35); the two second hooks (35) are slidably mounted on the fixture (2), and the two second hooks (35) are adjusted by the distance adjustment mechanism (4) to move closer to or further away from each other; the two first hooks (31) and the two second hooks (35) cooperate to fix the outer casing of the square battery cell module; The pulling assembly includes a lead screw (12) and a pulling head (13). The lead screw (12) is threadedly connected to the tooling frame (2). The end of the lead screw (12) is rotatably connected to the pulling head (13). The pulling head (13) is used to connect the end cap of the square battery module so that the end cap can be pulled away from the housing when the lead screw (12) rotates.

2. The disassembly fixture for the square battery cell module according to claim 1, characterized in that: The spacing adjustment mechanism (4) includes an upper wedge block (45), a lower wedge block (43), and a synchronizing rod (44); each of the two second hooks (35) is fixedly connected to a lower wedge block (43), and both ends of the synchronizing rod (44) are connected to upper wedge blocks (45). The inclined surfaces of the two upper wedge blocks (45) face opposite directions, and the inclined surfaces of the upper wedge blocks (45) cooperate with those of the lower wedge blocks (43) to control the two second hooks (35) to move closer to or further away from each other when the synchronizing rod (44) moves.

3. The disassembly fixture for the square battery cell module according to claim 2, characterized in that: The spacing adjustment mechanism (4) also includes a return spring (46) and a seat block (47); the two seat blocks (47) are fixed on the tooling frame (2), and the seat blocks (47) abut against the lower wedge block (43) through the return spring (46).

4. The disassembly fixture for the square battery cell module according to claim 3, characterized in that: The spacing adjustment mechanism (4) also includes a threaded adjustment rod (42), which passes through the synchronizing rod (44) and is threadedly connected to the tooling frame (2). When the threaded adjustment rod (42) is rotated, the movement of the synchronizing rod (44) can be controlled.

5. The disassembly fixture for the square battery cell module according to claim 1, characterized in that: The end cap pulling assembly (1) also includes a guide rod (11); the guide rod (11) is parallel to the lead screw (12), the guide rod (11) is slidably engaged with the tooling frame (2), and the end of the guide rod (11) is connected to the pulling head (13).

6. The disassembly fixture for the square battery cell module according to claim 1, characterized in that: The pull head (13) is provided with an elongated hole, and a screw passing through the elongated hole can be connected to the pull head (13) to fix the pull head (13) to the pull head (13).

7. The disassembly fixture for the square battery cell module according to any one of claims 1-6, characterized in that: The tooling frame (2) includes a pull-out seat (21), an intermediate seat (22), a connecting rod (23), a portal frame (24), and a guide groove (25). The pull-out seat (21) is plate-shaped. The two sides of the portal frame (24) are connected to the two ends of the pull-out seat (21) through the intermediate seat (22) and the connecting rod (23). The intermediate seat (22) is connected to the portal frame (24) and the portal frame (24) through different connecting rods (23).

8. The disassembly fixture for the square battery cell module according to claim 7, characterized in that: A guide groove (25) is provided on the portal frame (24), and the second hook (35) slides in conjunction with the groove.

9. The disassembly fixture for the square battery cell module according to claim 1, characterized in that: A telescopic hole is provided on the second hook body (35), and one end of the hook arm (32) is inserted into the telescopic hole; a pin (36) is provided on the side wall of the second hook body (35), and a plurality of pin holes (33) are provided on the hook arm (32) to cooperate with the pin (36); the pin (36) is connected to the second hook body (35) through a pin spring (37), and the pin (36) can be inserted into different pin holes (33) to fix the relative position of the hook arm (32) and the second hook body (35).

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